Rolling-mill.



No. 717,673. PATENTED JAN. 6, 1903.

J. R. GEORGE.

ROLLING MILL.

APPLICATION FILED MAR 10, 1902.

no MODEL,

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JEROME R. GEORGE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO MORGAN CONSTRUCTION COMPANY, OF WORCESTER, MASSACHU- SETTS, A CORPORATION OF MASSACHUSETTS.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 717,673, dated January 6, 1903. Application filed MaIchlO, 1902. Serial No- 97,543. (No model.)

To aZZ whom it may concern:

Be it known that I, JEROME R. GEORGE, a citizen of the United States, residing at Vorcester, in the county of Worcester and Commonwealth of Massachusetts, have invented a new and usefulImprovement in Rolling-Mills, of which the following is a specification, accompanied by-drawings, forming a part of the same, in which- Figure 1 represents a plan view of a rolling-mill embodying my invention. Fig. 2 is a front elevation of the same with the conveyer shown in sectional view online 2 2, Fig. 1. Fig. 3 is a sectional view of the conveyor on line 8 8, Fig. 1; and Fig. 4 is a sectional view of the conveyer on line 4 4, Fig. 1.

Similar reference letters and figures refer to similar parts in the diderent views.

My present invention has for its object to provide an improved method of effecting the consecutive reduction of a rod or bar by an automatic and continuous movement of the rod or bar through the reducing-passes of a two-high mill; and my invention consists, broadly, in the method of disposing of the rod or bar between the'consecutive passes of the rolls, whereby it is conducted or transferred from one of the passes of the rolls around one of the roll-housings to the next consecutive pass; and my invention further consists in the construction and arrangement of parts, as hereinafter described, and pointed out in the annexed claims.

Referring to the accompanying drawings, A A denote the housings of a two-high rollingmill containing upper and lower rolls B B',provided with aseries of circumferential grooves or reducing-passes 1, 2, and 8, although their number may be increased or diminished. The grooves 1, 2, and 3 gradually decrease in size in the order named, so that a rod or bar consecutively passed through the grooves from 1 to 3 willbe reduced in size and correspondinglyincreasedinlength. Extendingaround one of the roll-housings A are curved channels or tracks, according to the number of passes in the rolls, for conducting or transferring the rod as it leaves the rolls into the next consecutive pass, said channels or tracks forming the repeaters C and D. The repeater C is provided with a mouth C, in position to receive the rod as it leaves the groove or pass 1 in the rolls, and as the rod is pushed into the mouth C it is crowded against the corner C of the mouth C and against the side Wall O thereby bending the rod and imparting a curvature approximating the curved repeater C, which extends around the roll-housing Ato the next succeeding groove or pass :2 in the rolls. The repeater D is similar to the repeater C and extends around the housing A, with its ends in position to receive the rod from the groove or pass 2 of the rolls and deliver it to the next consecutive groove or pass 3 in the rolls. The repeater D, like repeater C, has a mouth D arranged to receive the rod as it leaves the groove or pass 2, and it successively bends the rod,"giving it a curvature approximating the path around the housing A, with the opposite end of the repeater in position to deliver the rod to the next consecutive groove or pass 3. This being the last pass, in the present instance the rodlis conducted through thestraight channel or run-out F.

The bottom F of the run-out F is slightly inclined from its mouth F, as shown in Fig. l, for the purpose of raising the advancing end of the rod as it is delivered from the last re ducing-pass of the rolls in order to conduct it over the rod or bar which may at the time be passing through the curved repeaters C and D. In case the position of the reducing grooves or passes 1, 2, and 3 were reversed and the larger groove were to be placed next the housing A, causing the motion of the rod as it is passed through the mill to be reversed from that lhave above described, theinclined bottom of the groove F or run-out might be omitted, provided the rod operated upon was short enough to cause its rear end to be carried through the rolls before its advancing end reached the next consecutive pass. In other words, if the length'o'f the rod be less than the circumference of the repeaters I place a plate or cover G over that section of the repeaters C and D next the rolls in order to prevent the buckling of the rod or bar in the repeaters, leaving the remaining portion of therepeaters open to allow the rod or bar to be raised out of the repeaters in case the rod is delivered from one of the grooves or passes in the rolls faster than it is taken up by the next succeeding groove or pass, thereby producing a loop or overfeed, as indicated by the broken lines H and I, and I provide means for relieving the overfeed by means of an inclined floor J, down which the overfeed is pushed aided by gravity due to the inclination of the floor. By giving a bend to the rod or bar immediately upon its delivery from the grooves or passes of the rolls I obviate the buckling of the bar between the rolls and the curved repeater, and I also obviate the friction of the rod or bar against the remaining portion of the repeater. So far as I am aware it is broadly new to accomplish the continuous reduction of a rod or bar by transferring the advancing end of the rod or bar around one of the roll-housings, so the rod or bar delivered from a groove in the rolls will be entered into another groove in the same pair of rolls and its reduction continued, and I do not wish to confine myself to the specific means shown for transferring the end of the rod or bar around the roll-housings. The employment of repeaters O and D is a convenient method and one of many which may be employed for that purpose.

The gist of my invention consists in the idea of accomplishing the consecutive reduction of a rod or bar by the consecutive grooves or passes of a pair of rolls on what is known as a two-high mill by transferring the advancing end of the rod or bar around one of the housings of the rolls. The plate G covers substantially one half of each of the repeaters, leaving the other half open, which allows the loop or overfeed to be lifted out and to flow down the inclined floor J, as represented by the broken lines H and I, the movement of the loops being in the direction of the arrow at, Fig. 1. If, however, the edge G of the covering-plate be arranged on the broken line K, Fig. 1, the direction of the overfeed or loops of the rod or bar would be changed and would proceed in the direction of the arrow 1) and the loops would flow out in a line at an oblique angle to the axes of the rolls instead of a line parallel with the axes of the rolls, as shown in Fig. 1. While the edge G of the covering-plate G coincides substantially with the diameter of the repeaters, its position maybe changed in order to change the movement of the overfeed, thereby directing the loops into a desired position on the floor of the mill.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination with apair of rolls, having two or more grooves or passes for the consecutive reduction of a rod or bar, of means for conducting or transferring the advancing end of the rod or bar from one of said grooves around one of the roll-housings to a succeeding groove in said rolls.

2. The combination with a pair of rolls, having two or more grooves or passes for the consecutive reduction of a rod or bar, of means for successively bending the rod or bar as it leaves one of the grooves or passes in the rolls, whereby a curvature is imparted to the rod or bar corresponding with the curved path around one of the roll-housings.

3. The combination with a pair of rolls having two or more grooves or passes for the consecutive reduction of a rod or bar, of a repeater for the rod or bar, said repeater makinga complete circuit from one of said grooves and on one side of said rolls to a succeeding groove and on the opposite side of said rolls, substantially as described.

4. The combination with apair of rolls, having two or more grooves or passes for the consecutive reduction of a rod or bar, of a repeater for the rod or bar, said repeater leading from one of said grooves to a succeeding groove and on the opposite side of said rolls and passing around one of the roll-housings, substantially as described.

5. The combination with apair of rolls, having two or more grooves or passes for the consecutive reduction of a rod, of a repeater for conducting the rod or bar around one of the roll -housings and means for relieving the overfeed, substantially as described.

6. The combination with a pair of rolls having two or more grooves for the consecutive reduction of a rod or bar, of a repeater arranged to conduct or transfer the rod or bar through a complete circuit of three hundred and sixty degrees and from one of said grooves to the next succeeding groove, substantially as described.

7. The combination withapair of rolls having two or more grooves or passes for the consecutive reduction of a rod or bar, of a repeater arranged to direct the rod or bar from one of said grooves around the roll-housing to the next succeeding groove and means for retaining the rod or bar in said repeater, as the rod or bar leaves a groove or pass in the rolls and as it enters the next succeeding groove or pass in the rolls, substantially as described.

8. The combination with a pair of rolls, having two or more grooves or passes for the consecutive reduction of a rod or bar, of one or more channels or tracks extending around one of the housings of the rolls, by which the rod or bar is conducted from one of the grooves or passes to the next succeeding groove orpass of the rolls, and an inclined floor at the side of said channel or track to receive the overfeed, and a plate covering the ends of said channel or track, substantially as described.

9. The combination with a pair of rolls, having two or more grooves or passes for the consecutive reduction of a rod or bar, of a curved repeater extending from one of said grooves or passes around one of the roll-housings to the next succeeding groove or pass in said rolls, and a channel or run-out crossing said repeater, substantially as described.

10. The combination with a pair of rolls,

having two or more grooves or passes for the consecutive reduction of a rod or bar, of a curved repeater extending from one of said grooves 0r passes around one of the roll-housceeding groove or pass, said repeater making a circuit of three hundred and sixty degrees, of a plate or cover covering a section of said repeater with one edge of'said plate coinciding substantially with a diametrical line passing through said repeater, leaving one-half of said repeater uncovered for the relief of the overfeed, substantially as described.

Dated this Gthday of March, 1902.

JEROME R. GEORGE.

Witnesses:

M. M. SOHUERMANN, RUFUS B. FOWLER. 

